num_old 500 arch/s390/kernel/perf_cpum_sf.c unsigned long num, num_old; num_old 506 arch/s390/kernel/perf_cpum_sf.c num_old = sfb->num_sdb; num_old 526 arch/s390/kernel/perf_cpum_sf.c num, sfb->num_sdb - num_old,